PLANT SCIENCES: How Legumes Select Their Sweet Talking Symbionts
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Legumes form a symbiotic relationship with rhizobial bacteria, which live in root nodules and fix nitrogen to form ammonia. A key event in the initiation of this symbiotic relationship is the release of Nod factor signals by bacteria. In his Perspective, Cullimore and DÃ©nariÃ© discuss new work published here (Limpens et al.) and elsewhere that identifies the plant receptors recognizing Nod factors.